Alex Blania, the co-founder of Worldcoin, denied that the project would invade people’s privacy, saying that the orbs convert iris scans into unique strings of letters and numbers before permanently deleting the images. The resulting code would simply be used to check whether a user has already claimed a share of the Worldcoin tokens. “Even if I would have your iris code in one form or another, I would have no chance to find out who you actually are on the blockchain,” Blania said, referring to the digital ledgers that underpin cryptocurrencies. Worldcoin is built on the ethereum blockchain.

https://www.ft.com/content/0f873676-26c8-4b57-b369-23a2b30f11a5?shareType=nongift